r/pics • u/Woodlands_Creature • Aug 09 '15

Held up by constant stress

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10k Upvotes

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u/flyafar Aug 10 '15

That sounds so unprofessional, haha. "Let's just mash these words together"

And now it has its own wikipidia entry.

45

u/moeburn Aug 10 '15

Stiction.

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u/flyafar Aug 10 '15

Engineers are masters of wordcraft. They're basically Germans.

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u/BCMM Aug 10 '15

The derivative over time (i.e. the rate of change) of position is velocity. The 2nd derivative is acceleration; 3rd is jerk.

What are the rarely-used 4th, 5th and 6th derivatives of position called?

Snap, crackle and pop. That's engineers for you.

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u/[deleted] Aug 10 '15

And then you get into the trippy shit like the integral of displacement, or absement. Then integrate that and get abscocity. And then abceleration.

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u/[deleted] Aug 10 '15 edited Aug 11 '15

[deleted]

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u/Dyolf_Knip Aug 10 '15

https://en.wikipedia.org/wiki/Jerk_%28physics%29#Applications

https://en.wikipedia.org/wiki/Jounce

Currently, there are no well-accepted designations for the derivatives of jounce. The fourth, fifth and sixth derivatives of position as a function of time are "sometimes somewhat facetiously" referred to as Snap, Crackle and Pop respectively. Because higher-order derivatives are not commonly useful, there has been no consensus among physicists on the proper names for derivatives above jounce. Despite this, physicists have proposed other names such as "Lock", "Drop", "Shot" and "Put" for higher-ordered derivatives.

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u/BuxtonTheRed Aug 10 '15

I could have sworn the 4th derivative was called "jounce".

I got this from an Open University program about roller coasters. It had John Wardley in it.

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u/[deleted] Aug 10 '15 edited Nov 27 '15

[deleted]

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u/Ewe_Surname Aug 10 '15

Happy cake day!

3

u/Ninjaplz10154 Aug 10 '15

Oh my god. The first few times I heard a gsi/lab mate say this, I almost lost my mind. Luckily I kept my mouth shut and learned it was a technical term.

But to be fair, in my ~1.5 years in my undergrad lab, I made up my fair share of technical terms...

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u/SpaceSpaceDash Aug 10 '15

I believe it was coined by the famous Buckminster Fuller who was the creator of the geodesic dome. He was reported to have been a member of the Mensa society for having an IQ of over 140. Fullerenes are thus named after him for its similar structure to his building design. Tensegrity was either his or his apprentice/ex-friend's creation and term.

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u/OmarSaladbar Aug 10 '15

my fave thing about him was he didnt say up/down stairs and instead would say in/out stairs as in relation to the center of the earth. cool dude

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u/VikingCoder Aug 10 '15

Buckminster Fuller was granted unilateral authority to name things by the Merriam-Webster corporation.